I have to use SQL Developer to execute querys on a Sybase DB. The Connection works fine. But when I try to execute one of my queries it complains about the commenting style using "//" and "/* ... */". Even when I try to execute a stored procedure with those kind of comments in the code it fails. When I use another tool like the DB Visualizer everything works fine.
You may need to use a hint, see Dermot's post on the subject
Note that we're not designed to be a cross platform query tool like DBVisualizer. Our goal is to provide a world-class Oracle IDE. The Sybase connectivity is provided to help you migrate to Oracle Database.